Exchange ActiveSyncAvailable for: iPhone 5s and later, iPad Air and later,and iPod touch 6th generationImpact: An attacker in a privileged network position may be able toerase a device during Exchange account setupDescription: A validation issue existed in AutoDiscover V1. Thisissue was addressed through requiring TLS.CVE-2017-7088: Ilya Nesterov, Maxim Goncharov

Mail MessageUIAvailable for: iPhone 5s and later, iPad Air and later,and iPod touch 6th generationImpact: Processing a maliciously crafted image may lead to a denialof serviceDescription: A memory corruption issue was addressed with improvedvalidation.CVE-2017-7097: Xinshu Dong and Jun Hao Tan of Anquan Capital

MessagesAvailable for: iPhone 5s and later, iPad Air and later,and iPod touch 6th generationImpact: Processing a maliciously crafted image may lead to a denialof serviceDescription: A denial of service issue was addressed through improvedvalidation.CVE-2017-7118: Kiki Jiang and Jason Tokoph

WebKitAvailable for: iPhone 5s and later, iPad Air and later,and iPod touch 6th generationImpact: Processing maliciously crafted web content may lead touniversal cross site scriptingDescription: A logic issue existed in the handling of the parent-tab.This issue was addressed with improved state management.CVE-2017-7089: Anton Lopanitsyn of ONSEC, Frans Rosén of Detectify

This update is available through iTunes and Software Update on youriOS device, and will not appear in your computer's Software Updateapplication, or in the Apple Downloads site. Make sure you have anInternet connection and have installed the latest version of iTunesfrom https://www.apple.com/itunes/

iTunes and Software Update on the device will automatically checkApple's update server on its weekly schedule. When an update isdetected, it is downloaded and the option to be installed ispresented to the user when the iOS device is docked. We recommendapplying the update immediately if possible. Selecting Don't Installwill present the option the next time you connect your iOS device.

The automatic update process may take up to a week depending on theday that iTunes or the device checks for updates. You may manuallyobtain the update via the Check for Updates button within iTunes, orthe Software Update on your device.

To check that the iPhone, iPod touch, or iPad has been updated:

* Navigate to Settings* Select General* Select About. The version after applying this update will be "11".